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tan多少度等于四分之三

更新时间: 2020-10-29 00:00:00     

tan37度等于四分之三。tan指正切函数,属于三角函数的一种。在Rt△ABC(直角三角形)中,∠C=90度,AB是∠C的对边c,BC是∠A的对边a,AC是∠B的对边b,正切函数就是tanB=b/a,即tanB=AC/BC。除了正切函数,三角函数还有正弦函数和余弦函数。

关键词: tan 多少 等于 分之

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